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  <title>目录</title>
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  <p><a href="./10-timer-button">计时器</a></p>
  <p><a href="./11-password-visual">密码可见</a></p>
  <p><a href="./12-range">滑杆</a></p>
  <p><a href="./13-progress">进度条</a></p>
  <p><a href="./20-form-validation">数据合法校验（集中/字段/字符）</a></p>
  <p><a href="./21-h5-validation">数据合法校验（H5校验）</a></p>
  <p><a href="./31-echart">二进熵函数</a></p>
  <p><a href="./32-map">百度地图</a></p>
  <p><a href="./33-hightlight">语法高亮</a></p>
  <p><a href="./34-excel">Excel表格</a></p>
  <p><a href="./work-tubiao">作业-图表</a></p>
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